Non local Thirring model with spin flipping interactions
高能物理 - 理论
2016-08-15 v1 强关联电子
摘要
We extend a non local and non covariant version of the Thirring model in order to describe a many-body system with spin-flipping interactions By introducing a model with two fermion species we are able to avoid the use of non abelian bosonization which is needed in a previous approach. We obtain a bosonized expression for the partition function, describing the dynamics of the collective modes of this system. By using the self-consistent harmonic approximation we found a formula for the gap of the spin-charge excitations as functional of arbitrary electron-electron potentials.
引用
@article{arxiv.hep-th/0012269,
title = {Non local Thirring model with spin flipping interactions},
author = {Aníbal Iucci and Kang Li and Carlos M. Naón},
journal= {arXiv preprint arXiv:hep-th/0012269},
year = {2016}
}
备注
Latex, elsart, 18 pags., no figures